Originally Posted by Eva01
With stock cams, what's the point of having a 9100 redline? You're not making power up there. Just increasing wear and tear and setting yourself up for potential vavle train failure if your zinging your stock ITR valve train to 9100 rpms daily.
I've got stock cams and I have my redline at 9000. I make power on stock cams to 8150. The drop off is so gradual that at 8600 i am still making within 4 hp of peak. The longer i can hold that out the higher in the RPM band I will drop in and the more power i can making. A 500rpm difference around 6000 rpms is almost 10 hp. Makes more sense to hold it out. Not sure what the original poster does with his car but I auto-x and to avoid a shift if possible is always an advantage.
With a stock final drive and a 9000 rpm redline you woudl most likely be able to avoid shifting to 4th gear in the 1/4 mile where at an 8500 rpom fuel cut I found myself in 4th gear for a very small amounmt of time but enough to matter.
just reasons to rev that high. To justify these you need to be using your car for Drag Racing and Auto-X and have the top end tuning very well done to make a difference.